YES IT WILL FIT RIGHT IN THERE, But it will never run right. You would have to change a lot of stuff.
It would be nice if all you had to do was reprogram the computer. But there's more
to it then that. Wireing, fuel system, Distributor, Computor.
YES IT CAN BE DONE. Lot of money, work and know how. ( SMARTS )
get a new truck..... :)
ohreilly's in ft.smith, Arkansas or any near by oh reilleys have the computer they can hook to your plug under the dash to flash or reprogram your truck for around 75 dollars.
no---your talking difference between apples and oranges
Change speed? It has to be done at a shop. They plug computer to truck and change speed with the computer.
Reprogram the ECM.
YES it will fit right in. But now hears the problem that you will have. The 91 is a fuel injected computer controlled engine and the 86 is not. Therefore you would need the entire wiring harness and computer plus the fuel pump that's in the 91 fuel tank. You will run into all kinds of problems trying to get the 91 engine to run in that 86 truck. It would be cheaper and easyer to get a carburatored engine and put it back in the 86 truck.
The engine computer is the regulator.
yes. it should work fine.
The engine computer is the regulator.
No. It is illegal, the check engine light will be on, and the computer will try to adjust which will hurt performance.
Did you take the old ( PROM ) out ? And install it in the new computer. If its a old or used computer it may not be any good. I would check the wireing harnes were it plugs into the computer colsely
Yes it will fit but here's the problem. The transmission in the 94 is computer / electronic controlled and it must have all the engine sensors that the 94 engine has to shift right. You would also have to install a fuel pressure regulator to lower the fuel pressure. The 86 engine is NOT a computer controlled engine. You need to install a 1988 through 1995 engine in that truck so you won't have any problems. Then you will be done with it.